Though tiny, this newfound satellite galaxy around M31 offers big lessons — and questions — about how galaxies evolve.

A Swarm of Dwarf Galaxies Buzz Around Our Milky Way's Twin Imagine the Milky Way and Andromeda as two massive aircraft ...

The findings reveal unusual chemical signatures and offer new insights into the behavior of novas beyond the Milky Way.

This is a wide-angle view of the distribution of known satellite galaxies orbiting the large Andromeda galaxy (M31), located 2.5 ... galactic "ecosystem" that NASA's Hubble Space Telescope is ...

NASA’s James Webb Space Telescope captured the stunning image of Cartwheel Galaxy. This landscape of “mountains” and “valleys” speckled with glittering stars is actually the edge of a nearby, young, ...

One of the great places to look for dwarf galaxies is the halo of the Andromeda galaxy (also known as Messier 31, or M31 for short), due to its relative proximity. UNIONS is so far the deepest ...

The target is the vast Andromeda galaxy that is only 2.5 million light-years from Earth, making it the nearest galaxy to our own Milky Way. Andromeda is seen almost edge-on, tilted by 77 degrees ...

Located 2.5 million light-years away, the majestic Andromeda ... galaxy, like bees around a hive. These satellite galaxies represent a rambunctious galactic "ecosystem" that NASA's Hubble Space ...

Located 2.5 million light-years away, the majestic Andromeda ... galaxy, like bees around a hive. These satellite galaxies represent a rambunctious galactic "ecosystem" that NASA's Hubble Space ...